Filter Media
The filtering can be defined as the process for separating a solid from a liquid, when the mixture is passed through a porous medium.
The main filter media used today are:
• Sands (also includes some minerals).
• Fabrics (of different materials and different types of tissues, such as warp and weft).
• Nets (of different materials and fabrics).
Depending on the type of material is required to remove from a liquid,filter medium will be selected. In this type of operation, it is always necessary to test different materials to determine which type of filter should be used, as well as the size of the space through which the liquid or fluid passes.
In processes where water is included, sand filters or types of minerals are used, which have different size and density characteristics, compared to the type and size of solids present in the water.
As above, for water filtration processes, filters are used for a type or various types of sand. In the latter case are called "multimedia" or filter depth.
Among the materials that are charged in a filter, supporting gravels are listed from largest to smallest size, as one moves from the bottom up in a filter. On these materials, filter layers are arranged, which include: sands of different characteristics, a layer of hard material or other superior. The combination of filter materials, depends on what you want to remove from water. Aguasin markets these materials under the brand filter Carenit ®.
Carenit ® products are carefully selected, both in its physical properties (size distribution, density, etc..) And chemical properties (chemical capacity, catalysts, etc.).. Accordingly, there are:
Carenit C-XX (Inert Filter Materials)
In this category are the gravels (Carenit C-1 to C-5), sand (Carenit C-6 to C-8), not activated anthracite (AN Carenit, Carenit AM), high specific gravity sand as garnets (Carenit G), among others.
Carenit XX (Reactive Filter Media)
In this category, there are those chemical materials involved in water treatment, such as: activated carbon (AC Carenit), green sand (greensand, Carenit AB), calcium carbonate of marine origin (Carenit NC), clinoptilolite zeolite , and others
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Anthracite
Anthracite is an excellent means of filtration for clarification of the water in drinking water or industrial use, when used in combination with sand filter. Due to the special shape of their beans allows the material that is in suspension to be retained in the depth of the filter bed. In comparison with a sand filter, this filter media allows a longer stroke and less load loss. The flow of retro-wash is also reduced.
Use
CARENIT AN is a selected anthracite with density and standard particle size, which allows it to be used in sand filters or Manganese Greensand Filters to operate as multimedia (filtration in depth)
Advantages
• Allows service flows higher and longer careers than conventional filters.
• CARENIT AB hardness and its purity ensures a long life.
• Can be used in the same filter with other means of filtration.
Sand and Gravel
Filter Sands are siliceous sands extremely effective as a means of filtration. The filter size, operation flows, particle size and hardness of the material, are important to consider for the quality of filtered water to be used
• CARENIT C (filter) is particle sand selected of very specific grain size to achieve correct filtration. The material is free of dust once the backflushing is performed. Their granulometries are variables and your choice depends on the filtration system as CARENIT G, high-density sand composed of garnet, which is used in designs of special filters (filtration in depth).
• CARENIT C (gravel support), is selected siliceous gravel to be used at the bottom of the filters as the non-supporting walls of CARENIT bed filter. These are gravels that have the appropriate hardness and rounded shape and not angular. The correct graduation of various granulometries of CARENIT is essential to produce quality water.
Activated Carbon
CARENIT AC is a granular activated carbon as excellent filtration medium, taking a standard density and balanced pore structure, allowing this to be an efficient means of adsorption. Its main application is to remove flavor, color and chlorine from the water. The flavor is the result of the formation of chlorophenols when in the water there are untreated phenols and chlorine is dosed. Concentrations of only 0.1 ppm of chlorophenols generate undesirable flavors.
CARENIT AC requires regular retro-wash to eliminate accumulated material in suspension and leave the bed of activated carbon clean and able to operate efficiently. It is necessary that water have low levels of iron, free of oil and materials in suspension, for maximum efficiency and long life of the material.
Use
CARENIT AC is used to produce high-quality water (drinking water or industrial) back to its filtration, eliminating compounds such as chlorine and organic that it gives various flavor and color.
Advantages
CARENIT AC high surface area and hardness of its grain, allow a high adsorption capacity and low loss of material during the process of back flushing. CARENIT AC can be used with water from a wide range of pH.
Disposer of Iron - Manganese
CARENIT AB (Manganese Greensand) is a filter media of dark green color used to remove iron, manganese and hydrogen sulfide from water. It also has the capability to remove arsenic and radio. It is a mineral product called glauconite that has deposited on its surface manganese dioxide, which acts as a catalyst in the reactions of oxidation-reduction of iron and manganese, being retained in this filter media.
To activate (regenerate) the CARENIT AB potassium permanganate is used. There are two forms of revival: continuous regeneration (RC) and intermittent regeneration (RI), the meth As the iron and manganese are being retained in the burden of CARENIT AB, increases the loss of load between the input and the output of the water in the filter.
An important precaution to consider is to never exceed a difference in pressure or loss of load in the Carenit AB, greater than 10 psi, on this value material can break and decrease efficiency.
About Us
Aguas Industriales Ltda is a belonging Enterprise to the INPROSA group. It was founded in 1961 by Wilhelm Niehaus Stubbe. Since its beginning, Aguasin has been known for being a organization... (See more)
